>>2429357It really depends on the conditions I think. I've struggled to grow populations in the past, had some heat casualties last summer and the year before. I've heard that under ideal conditions, red wigglers can double their population in 3 months. European nightcrawlers or African nightcrawlers may take longer to multiply.
My bins have been quite successful this year, with minimal casualties in the heat wave and steady population growth. I'd like to reach a point where I can sell them, as they go for about $50 a pound. Their populations are actually self regulating, depending on how much space and food is available. For example, eventually they will naturally reach a capacity based upon the size of your bin and the food available, and they will stop reproducing as much.
It's a pretty interesting hobby, plus you get to eliminate cardboard/paper and food waste and get free high quality worm castings. My bins usually run 6 months to a year before I harvest, depending on the volume of worms inside.
